diff --git a/.github/workflows/buildwin.yml b/.github/workflows/buildwin.yml
index 94086f1..f63cda0 100644
--- a/.github/workflows/buildwin.yml
+++ b/.github/workflows/buildwin.yml
@@ -19,9 +19,9 @@ jobs:
       - name: Build Makefile with CMake
         run: |
           Set-Location build
-          cmake .. -G "MinGW Makefiles" -DCMAKE_SH="CMAKE_SH-NOTFOUND"
+          cmake -DCMAKE_CXX_FLAGS=-isystem\ include .. -G "MinGW Makefiles" -DCMAKE_SH="CMAKE_SH-NOTFOUND"
       - name: Build with Makefile
-        run: mingw32-make -C build ComSquare -L build/lib -I build/include
+        run: mingw32-make -C build ComSquare
       - name: Copy shared libs
         run: Copy-Item -Path 'C:\Program Files\Git\mingw64\bin\*.dll' -Destination build
       - name: Archive production artifact